SAP HANA Admin Overview
SAP HANA is an in-memory database for performing real-time data analysis and development of utilization on the most astounding purpose of real-time information. HANA association figures out how to direct SAP HANA structure in a single and distributed framework condition. Each HANA system can contain multi-hub architecture with each center containing diverse processors for fast speed data analysis and constant data provisioning. You can use Smart data access to get the data from non-SAP structures without acquiring the information to HANA database, and virtual tables can be used to perform read/write information activities.
SAP HANA Administration incorporates the accompanying exercises:
- SAP HANA numerous host framework administration
- SAP HANA System Management and Availability
- SAP HANA Administration Tools
- SAP HANA Backup and Recovery Management
- SAP HANA Lifecycle Management
- SAP HANA Data Provisioning and Integration with non-SAP frameworks
- SAP HANA Security and User Management
Each SAP framework contains various servers and it can be checked in HANA Studio under Administration tab. SAP HANA Studio contains Administration Perspective to deal with all admin tasks in HANA frameworks.
To check the landscape of HANA framework, explore to Landscape tab in HANA studio. Administrations demonstrate every one of the administrations running on HANA framework.
SAP HANA Admin: Multitenant Database
It is conceivable to set up numerous databases into a solitary HANA framework. When you install SAP HANA framework in numerous holder modes, you would setup be able to various isolated databases in single SAP HANA framework. This is called Multitenant database holders.
You can likewise clandestine a solitary container HANA framework to multiple container databases HANA framework. In numerous container HANA frameworks, every database keeps running on a similar infrastructure and utilizations similar processing assets. Be that as it may, every database contains following segments:
- Database Users
- Traces and Logs
All the database objects - tables, mappings, database views, SQL techniques - are separate for every database. You can likewise perform cross-database works in the multi-tenant database.
In SAP HANA framework, it contains different servers - Name Server, Index Server, Preprocessor, and XS Server. With numerous container databases, diverse mixes of the above servers are utilized.
Nameserver keeps up the landscape subtle elements of the framework and the framework databases run the Nameserver. The Name server of multitenant databases doesn't contain topology data and this data is put away in tenant database index.
Preprocessor and Compile server keeps running on framework databases as they don't contain hold on information. Each tenant database contains its own particular file server and SAP HANA Classic Server keeps running on the Index server of tenant database as a matter of course.
|SAP HANA Admin: Multitenant Database|
In the above screen capture, you can see 2 databases appropriated crosswise over three has in different container database frameworks.
In numerous container architectures, the framework database is set up at the time of installation of a various container framework or when you change over a single container framework to different container frameworks. This is utilized to oversee data about the framework all in all, and furthermore for tenant databases. It is utilized for Central System Administration in the multitenant environment.
System database contains data and client data for framework organization and SAP HANA Administration tools, for example, SAP HANA Studio to associate with the framework database. All the managerial tasks that are performed in the framework database apply to the entire framework and you can likewise focus on the design for a particular tenant database. Framework database contains complete landscape information around Tenant segments; notwithstanding, it doesn't contain topology-related data.
SAP HANA Admin: Multiple Host Systems
At the point when your SAP HANA framework is installed on a single system, it is known as Single Host System; be that as it may, when you disseminate the system installation on numerous system, it is called Multiple Host Systems. Utilizing multiple host systems, you can utilize features, for example, Load Balancing and Scale-Out component of SAP HANA framework. You can conquer the equipment constraints by appropriating a heap of your framework on numerous servers.
You can likewise dole out various tables to various hosts utilizing database segment to part a single table between hosts and to replicate tables to numerous hosts.
At the point when SAP HANA framework is installed on multiple hosts, SAP HANA Administrator can perform begin and stop, reinforcement, or run the update as a single system by taking single System ID known as SID.
Each SAP HANA framework contains its own server parts for each host and the demand from the customer application can be dispersed to various has in different host frameworks.
|SAP HANA Multiple Host System Architecture|
In the above screen capture, you can see SAP HANA multiple host system architecture, where HANA framework has 3 isolate occasions, and each instance has its own server segments. The ask for from the customer application can be dispersed to any of the instances in this environment.
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